<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>注册页面</h1>
<form action="">
  <input type="text" name="username" placeholder="用户名">
  <input type="text" name="password" placeholder="密码">
  <input type="text" name="nick" placeholder="昵称">
  <input type="button" value="注册" @click="reg()">
</form>
<script src="js/vue.min.js"></script>
<script src="js/axios.min.js"></script>
<script>
  let v = new Vue({
    el:"form",
    methods:{
      reg(){
        //得到form表单里的数据
        let data = new FormData(document.querySelector("form"));
        //发出注册的异步请求
        axios.post("/reg",data).then(function (response){
          if (response.data==1){
              alert("注册成功!");
              location.href="/";//跳转到首页
          }else{
              alert("用户名已存在!");

          }
        })
      }
    }
  })
</script>
</body>
</html>